The Pump,rotary, cataloged under National Stock Number 4320-01-417-2278, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Rexroth Corp the Mobile Hydraulics Div. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-417-2278 |
| Primary Part Number | S12S21AK75R |
| Item Name | Pump,rotary |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Rexroth Corp the Mobile Hydraulics Div |
| Status | ACTIVE |
| Discharge Connection Quantity | 1 |
| Intake Connection Type | THREADED INTERNAL |
| Pumping Element Operating Position | HORIZONTAL |
| Drive Shaft Length | 4.190 INCHES MINIMUM AND 4.231 INCHES MAXIMUM IN |
| Drive Connection Type | GEAR |
| Operating Speed at Rated Capacity | 3500.0 REVOLUTIONS PER MINUTE |
| Discharge Connection Thread Size and Series/type Designator | 0.562-18 UNF |
| Drive Shaft Type | WOODRUFF KEYWAY |
| Intake Connection Thread Size and Series/type Designator | 0.750-16 UNF |
| Discharge Pressure | 000.0 ENERGY EFFICIENT - FEMP - LOW STANDBY POWER - OFFICE EQUIPMENT -INTEGRATED COMPUTERS |
| Maximum Discharge Flow Rate | 3.69 GALLONS PER MINUTE |
| Drive Shaft End Diameter | 0.499 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| Rotary Pump Design | GEAR |
| Discharge Connection Type | THREADED INTERNAL |
| Intake Connection Quantity | 1 |
| Media for Which Designed | HYDROCARBON FUELS AND OILS |
| Pump Rotation Direction | CLOCKWISE |
| Mounting Type | FLANGE |
| Operation Method | POWERED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| S12S21AK75R PRIMARY | Rexroth Corp the Mobile Hydraulics Div (USA) |
NSN 4320-01-417-2278 is a Pump,rotary, manufactured by Rexroth Corp the Mobile Hydraulics Div, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-417-2278 has 1 manufacturer part number on file: S12S21AK75R (Rexroth Corp the Mobile Hydraulics Div).
Key specifications for S12S21AK75R: Discharge Connection Quantity: 1; Intake Connection Type: THREADED INTERNAL; Pumping Element Operating Position: HORIZONTAL; Drive Shaft Length: 4.190 INCHES MINIMUM AND 4.231 INCHES MAXIMUM IN. 19 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.